Recording-machine



H. LANDSIEDEL.

RECORDING MACHINE.

APPLICATION HLED FEB. 11. 1920.

Patented Oct. 25, 1921.

3 SHEETS-SHEET I.

WITNESS,

f i By @WK S A UBA/EVS.

H. LANDSIEDEL` RECORDING MACHINE.

APPLICATION FILED FEB. II, 1920. 1,395,121. Patented Oct. 25, 1921.

3 SHE TS-SHEET 2.

1 By l J I I /f/J AOR/VEYS.

H. LANDSIEDEL.

RECORDING MACHINE.

. .APPLICATION FILED FEB. II. 1920.

1,395,121.' Patented Oct. 25, 1921.

'.SHEETS-SHEET 3. zgr

WITNESS. /N VE N TUI?.

UNITED STATES PATENT OFFICE.

HARRY LANDSIEDEL, OF NORWOOD, OHIO, ASSIGNOR TO THE DALTON ADDINGMACHINE COMPANY, 0F CINCINNATI, OHIO, A CORPORATION 0F OHIO.

RECORDING-MACHINE.

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed February 11, 1920. Serial No. 357,776.

To all whom t may concern.:

Be it known that l, HARRY LANnsIEDEL, a citizen of the United States,residing at Norwood, Hamilton county, and btate of Ohio, have invented anew and useful Recording-Machine, of which the followinois aspecification.

his invention relates to recording machines.

An object of the invention is to provide an improved printing mechanismfor use in adding machines and in any other embodiments in which it maybe satisfactorily employed.

Another object of the invention is to provide a printing mechanism,comprising individual hammers arranged for percussive action againstprinting type, equipped with a novel form oi' quick acting mechanism forcontrolling the operation of the hammers.

Another object of the invention is to equip an adding machine with typedriving hammers arranged to be released under control of thetype-carriers, provided with equipment whereby the tripping elements ofthe hammers will not present any undue resistance against thetype-carriers as the latter move to their positions in which the type onthe carriers are supported in position for printing. i

A further object is to provide a novel mechanism for interrupting orsplitting the cooperative relationship between the hammers, wherebyrelease oi' hammers in lower numerical orders by hammers in higher nu-lmerical orders may be prevented.

In the drawings I have illustrated my invention embodied in a Daltonadding machine, though it will be apparent that the use of the inventionis not restricted to a Dalton machine. The invention may well be used inother embodiments. In the drawings,

Figure l is a side elevation of the operative mechanism of a Daltonadding machine having my invention embodied therein, certain of theshafts and frame parts being in section.`

Fig. 2 is a plan view of the parts-of the printing mechanism below theline A-A of Fig. 4.

Fig. 3 is a front elevationA of the printing mechanism.

Fig. 4 is a side elevation of the printing being removed showing thehammers and the hammer latches engaged in their normal positions.

Fig. 5 is a similar view showing the ositions of one of the hammers andits latch after the hammer has operated to print.

Fig. 6 is an enlarged plan view of the hammer latches and the coperatngcouplings.

Fig. 7 is a view showing the construction by which the couplings may belatched in different adjustments for the purpose of splitting themachine, or effecting coperative relationshi between the couplingsindifferent numerlcal orders.

Fig. 8 is a view showing the coupling latched in position in which thecoperative relationship is interrupted so that the latch member on whichsaid coupling is mounted may bereleased from its coperating hammerwithout releasing the coupling in the adjacent lower numerical order.

Fig. 9 is an enlarged perspective view illustrating more clearly thearrangement of the latches and couplings.

The mode of operation of the type-carriers 1 of the Dalton addingmachines under control of the differential mechanism 2 is well known, aSis the fact that the Dalton machine includesa controlling shaft 3 whichis turned in one direction to permit the type-carriers to operate 'afterthe differential mechanism has been set and is turl' 'd in the oppositedirection to its starting 'point to return the type-carriers to theirstarting points after printing has been effected. The vusual addingpinions 4 and their controlling racks 5 are shown, said racks beingcooperatively associated with the type-carriers in order to operate theadding pinions properly. The printing type 6 are supported by thetype-carriers and in the case of the Dalton adding machines are drivento effect printing upon paper fed to the type by a platen roller 7 andcoperating mechanism.

n the case of the Dalton machine the printing faces of the type aretoward the platen and after the type-carriers have been operated to andstopped in proper positions to aline the desired type at'the printingline, the hammers are percussively operated to strike the outer ends ofthe type and thereby drive the type as required to print.

My present invention comprises a set of mechanism, one of the side frameplates/printing' hammers-:fv-a-rranged in numerical eluded, since thehammers may be caused to operate at other times if desired;

The printing hammers 8 are pivotally supported upon a shaft 9 and areguided between teeth of a comb plate 10 and also between the teeth of acomb plate 11. Each hammer is provided with a projecting arm 12 andretractile springs 13 connect the arms 12 with a rod 14, the power andtension of said springs bein exerted to drive the hammers percussive yagainst the type alined at the printing line. For each hammer anvindividual releasable latch is provided, said latches being effective tohold the hammers in their retracted positions shown in Figs. 1 and 4until said latches are released at the proper time by mechanism providedfor that purpose. As shown, each latch'- c'omprises' an appropriatelyshaped `vmember 15' having a .shoulder 16 for engaging the `arm 12 ofthe' 'correspondin hammer to hold the hammer retracted. prings 17connect depending arms on the latch l riers move to their startinpoints.

members with a rod 18 and yieldingly hold the latches engaged with thearms 12 of the hammers. The latch members are operatively'supported bythe guiding comb plate 11 and another guiding comb plate 19 between theteeth of which comb plates the latch members are movable into and o utofengagementjwith the arms 12 of the'Qh'ammers. As will be apparent byreferenceto.

Figs. 4 a1id '5,`the tendency of the sprin 17 1s to raise the rear orinner ends of t e latchmembers from the positions showninf Fig. 4 to thepositions shown in Fig. 52;

When the machine is idle and at rest, the rear ends of the latch members15 are held in their lower positions by appropriate projections 2() onthe corresponding' type-carriers (Fig. 1), said projections enga 'ng theupper edges of the rear or inner en s of the latch members and holdingthem pressed downward. After printing has been effected the rear ends ofthe latch members are pressed downwardly to their normal or idlepsltlons by projections 20 as the typecarbecause the rear ends of t elatch members 15 arein the path of movement of the projections 20so'that as the ty e-carriers return to their vstarting points t e latchmembers are automatically returned to their 'proper positions.k Y' vThis is A rod 21 is supported by the side frames of the hammer mechanismand serves as an abutment to limit rearward movement ofthe latch membersand also as a species of fulcrum or pivot against which the lat'chmembers may turn when said members rlse ,to the positions in which theyare shown in Fi 5. f

ach of the latch members, except the one in the highest numerical orderwhich is at the extreme left relative to the operator facing themachine, has a projection 22 extending toward the latch member in theadjacent higherv order in position to be engaged by a -coupling so thatwhen any latch member above the one in lowest. order is moved to releasethe corresponding hainmer, all other latch members in lower orders mayalso be moved to release their hammers. Certain of the projections 22are arranged to coperate with pivoted couplings 23 which are preferablyof resilient material supported on pivots 24 on adjacent latch members.Each coupling carries a block 25 which, in one position of thecoupling,- is in position to be engaged by the projection 22 on-thelatch member inthe next adjacent -lower numerical order; and which, inanother position of the coupling,-is out of position to be engaged bysaid projection, thus permitting the machine to be split or divided soas to prevent release of hammers .in lower numerical orders as anincident tooperation of hammers in higher numerical orders. As showneach coupling 23 is in the form of an angular plate supported on itspivot 24 near the angle of the coupling, and having a projection 26serving as a detent to engage in an opening or recess 27 to latch eachcoupling in position to be engaged by the adjacent projection 22, andvalso afrranged to be engaged in a recess 28 to latch the coupling inposition so that it will not be' engaged by the adjacent projection22,thus4 leaving the latch member, on which the coupling is supportedfree to be released without effecting release of latch members towardl'ower orders. i

An extension 29 on each coupling serves as a key' or handle by which thecoupling may be engaged for purpose of adjustment, to latch the couplingin either operative or inoperative position as desired. Since theoperative mechanism of the machine is largely inclosed within a. caseprovision is made for permitting access to the couplings through anopening 30 in the case.

Release of the hammers is effected at the proper time by a releasebar'31 having one end pivoted on a support 32 (Fig. 2) andthe oppositeend pivoted to the upper extremity of a lever 33. The lever 33 1spivoted on a i support 34 and the lower end of said lever has an' armcarrying a roller 35 operating upon upper edge oifv acam 36carried bythe shaft 3 and having a depressed 'r- `tion or recess 37 near its rearend. hen the shaft 3 is turned in a forward direction, that is towardthe operator of the machine, theroller rides upon the upper edge of thecam 36 and the printing hammers in the 'embodiment shown are notreleased until bar 31 with it. Such movement of the releasebar 31 issufficient to take said bar beyond the rear edges of the shoulders 38 onthe latch members 15. The shoulders 38 had previously engaged againstthe under edge of the release bar 31 and limited upward movement of thelatch members lwhichhad been permitted to rise by the movement of thecorresponding type-carriers to recording position. The type-carrierswhich had notmoved to the recording position remain stationary orapproximately stationary and do not move a sufficient distance to permitthe corresponding latch members l5 to rise.` However, the latch memberscorresponding to the type-carriers which had moved lto recordingposition are permitted to rise, due to the fact that the projections 20on the type-7 carriers which had moved to recording p osition permitsuch movement of the latch members. From .this it follows Vthat thelsprings 17 raise the latch members which vmaybe raised to engage theshoulders 38 of said'latchmembers in front of the latch release bar 31about the time that the shaft 3 completes its forward turning movement.A's the shaft 3 starts on its return movement, that is its movementtoward its starting point, the cam 36, by contact with the roller 35,swings the upper end of the lever 33 and thereby the latch release bar31 forwardly, thus moving forward to released position all of the latchmembers 15 whose shoulders 38 had become engaged in front of the releasebar 31, as previously described. This operation occurs during theinitial portion of the return movement of the rock shaft torward itsstarting point in the embodiment shown; such release of the hammersbeing vquickly effected, permitting immediate percussive'action of thehammers against the type. The lever 33 is actuated in one direction by aspring 39 and is operated against the power of said spring by thefzeamv36.

A device is provided to restore the hammers into latehed engagement withthe latch members 15.' As shown, the restoring devicecomprisesfaf'bail'including' a rod 40 supported transversely at' therearof the hammers by a 'pair of armsilwhich are attached to a rockshaft.42. A Vlever 43,

which may be an extension of one of the arms 41, or otherwise-attachedto the shaft 42, has a roller 44 operating on a cam 45 attached to theshaft 3. As the shaft 3 is turned in a forward direction to permit thetype-carriers to move to recording position, t e cam 45 moves alongunder the roller 44 until a notch or depression 46 (Fig. 1) on the camis presented at the roller. A spring 47 serves to actuate the arms 41rearwardly to swing the rod away from the hammers to permit the hammersto be operated by their springs 13 when the hammers are released asabove 'described The movement of the bail away from the hammers takesplace about the time that the forward turning movement of the shaft 3 iscompleted and prior to the release of the hammers. When the shaft 3starts on its return movement after having completed its forward turningmovement the cani quickly raises the lever 43 thereby actuating the arms41 and the rod 40 in a direction to restore the hammers into latchedengagement with the latch members 15.

From the foregoing it is apparent that my .invention serves Yitspurposes in a highly efficient manner. Plainlythe invention may be usedin adding machines other than the Dalton adding machine. I do notrestrict myself to the use of the invention in any particular machine,nor do I otherwise limit myself to unessential features since it isapparent that lthe invention may be varied without departure from thenature and princi le thereof.

Vhat I claim and desire to secure by Letters Patent, is

1. In a recording machine, the combination of type-carriers,.springactuated hammers for driving the `type on said type-car riers to print,a latchY for holding each of said hammers in retracted position, adevice for releasing the latches corresponding to the` type-carriers inrecording positions, springs for moving latches into latching engagementwith said device when the corresponding type-carriers move to recordingpositions, and means controlled directlfy by `the type-carrierspreventing release o the latches corresponding to the type-carrierswhich are out ofV recording position', andcoperating with said sprin tomove released latches to their initia positions into engagement .withthe corresponding hammers when the type-carriers move to their gstarting positions.

2. Ina recording machine, the combination -of type-carriers movable toand from recording positions, hammersA for driving the type on thetypefcarriers to print, meansfory retracting the.v hammers from thetype, latch members for lholdin the hammers retracted, a device for reeasing the latch members from the hammers corresponding to thetype-carriers in recording positions, a spring for moving each of thelatch menibers into engagement with said device, and means supported andoperated by the typecarriers for moving said latch members out ofengagement with said device as an incident to movement of thetype-carriers toward their starting positions, and arranged to permitsaid springs to move said latch members into engagement with the hammerswhich had been operated.

3. In a recording machine, a shaft, hammers pivoted on said shaft,elements for guiding said hammers in their operations, a latch memberengaging each hammer, a device for releasing said ,latch members fromsaid hammers, a trip actuated by one latch member for releasing anotherlatch member from the hammer engaged by the latter, means controlled bythe type-carriers holding said latch members out of engagement with saiddevice when the typecarriers are out of recording position andpermitting said latch members to be moved into engagement with saiddevice when the type-carriers move to recording position, and springsfor moving said latch members into engagement with said device when thetype-carriers move to recording position, and for moving the latchmembers into engagement with said hammers when the type-carriers'- movefrom their recording positions.

l. In a recording machine, the combination of a series of type-carriers,hammersl for driving the type on said type-carriers to print, a rockshaft operable in forward and return turning movements, mechanism forpositioning the type-carriers for printing as an incident to the turningof said shaft in one direction, latches holding said hammers inretracted positions, a device actuated by the return turning vmovementsof said rock shaft for releasing said latches from said hammers duringthe return turning movementof said rock shaft, springs for moving thelatches into position to be engaged by said device as an incident tomovement of the type-carriers.. to recording osit-ions and arranged tomove said late es into engagement with the hammers as an incident tomovement of the type-carriers from their recording positions and duringthe .return turning movement of said rock shaft, and elements operatedby the typecarrieis during their movement from 'recording position-formoving said latches in opposition to the power of said springs` outy ofposition to be engaged by said device and leaving said springs free tomovesai latches into engagement with said hammers,

5. In a recordin machine, the combination of a series o type-carriers,hammers for driving the type on said type-carriers to print, a rockshaft operable in forward and return turning movements, mechanism forpositioning the type-carriers for print` `device `to release from thehammers suci latches as engage said device, and means operated by thetype-carriers during] their movement toward their starting points formoving said latches in opposition to the power of said springs out ofposition to be engaged by said device, and arranged to holdcorresponding latches out of position to be engaged by said device untilthe typecarriers move toward their recording positions.

6. In 4a recording machine, the combination of a rock shaft operable inforward and return turning movements, type-carriers movable to recordingosition during turning movement of said s aft in one direction,

spring actuated hammers for driving the type on said type-carriers torint, a latch member for engaging and holding each hammer in a retractedposition, a'swinging bai" for releasing latch members during the initialmovement of said rock shaft toward its starting point after thetype-carriers have been positioned for printing, means for operatingsaid bar from said Arock shaft during the initial portion of the returnturning movement of said rock shaft, and a spring connected with eachlatch member arranged to move the same into position to be engaged bysaid bar as an incident to movement of the corresponding type-carriertoward recording position, and arranged to move said latch member intoengagement with the corresponding hammer as an incident to Vmovement ofthe corresponding type-carrier form recording position.

7 In a recording machine, the combination of a rock shaft operable 'inforward and return turnin movements, type-carriers movable to recor ingposition during movement of said shaft in one direction, hammers fordriving the type on said type-carriers todprint, a latch member forengaging and hol ing each hammer in retracted position, a device forreleasing said latch members during initial movement of said rock shafttoward its starting point after the type-carriers have been positioned,sprin for moving said latch members during t e forward turning movementof said -rolck shaft to position to be engaged by said device as anincident to movement of the corresponding type-carriers to recordingposition of a rock shaft, type-carriers movable to .recording positionduring turning movement of saidshaft in one direction, spring actuatedhammers for driving the type on said type-carriers to print, a latchmember for engaging and holding each hammer in a retracted position, adevice for releasing said latch members during the initial movement ofsaidrock shaft toward its startin point after the type-carriers havebeen pos1tioned for printing, a cam on the rock shaft controlling andtiming the operation of said' device, means operated by thetype-carriers h for disengaging said latch members from said device, andmeans for operating said device from said rock shaft as an incident tomovement of the type-carriers to their recording positions.

9. In a recording machine, a series of type driving hammers, a number ofsupports, a series of latches movable longitudinally Von said supportsinto and out of latching engagement with said hammers, a bar, astationary support to which said bar is pivoted, means for movingselected ones of said latches into position to be engaged by said bar,and a lever for oscillating said'bar to release said latches from saidhammers.

10. In a recording machine, a series of type driving hammers, a number0f Su ports, a series of latches movable longitud?- nally on saidsupports into and out of latching engagement with said hammers, a bar, astationary support to which said bar is pivoted, means for movingselected ones of said latches into position to be engaged by said bar, alever for oscillating said bar to release said latches from saidhammers, and devices for oscillating said lever.

11. In arecording machine, a series of type driving hammers, a number ofsupports, a series of latches movable longitudinally on said supportsinto and out of latching engagement with said hammers, a bar, astationary support to which said bar is pivoted, means for movingselected ones of said latches into position tobe enga ed by said bar, alever for oscillating said iar t0 release said latches from saidhammers, and springs acting to move said latches into engagement withsaidhammers.

12. In a recording machine, a series of type driving hammers, a shaft onwhich said hammersare pivoted,rsprings for actuating said hammers inltype driving operations, devices'for guiding said hammers in theirmovements by said springs, a projection integral with each hammer,supports, latches arranged for pivotal and longitudinal movements onsaid supports, a bar for moving said latches out of engagement'with saidprojections, springs for moving said latches longitudinally on saidsupports into enga ement with said projections' and pivotaIly into'engagement with said bar, a coupling member pivoted on each latchwhereby latches in lower orders will he moved out of engagement withsaid projections by latches in higher orders, and means for latchingsaid couplings in position to prevent release of latches in lower ordersby latches in higher orders, leaving the latches in higher orders freeto be released while the latches in lower orders remain engaged withsaid projections.

131 In a recording machine, a series of type driving hammers, a shaft onwhich said ammers are pivoted, springs for actuating said hammers intype driving operations, devices for guiding said hammers in theirmovements by said springs, a projection integral with each hammer,supports, latches movable longitudinally on said supports 100 into andout of engagement with said projections, springs for moving said latchesinto engagement with said projections, a coupling member pivoted on eachlatch whereby latches in lower orders will be 105 moved out ofengagement with said projections by latches in higher orders, means forlatching said couplings in position to pred vent release of latches inlower orders by latches in higher orders, leaving the latches 110 inhigher orders free to be released while the latches in lower ordersremain engaged with said projections, a pivoted release bar, and

.mechanism for operating said bar as required to release said latches.

14. In a recording machine, a number of type driving hammers, a shaft onwhich said hammers are pivoted, springs for operating said hammers,latch members for holding said hammers respectively in r e 120 tractedpositions in opposition to said springs, springs forholding said latchesin engagement with said hammers, means for moving said latches inopposition 'to the last-named springs to release said latches i215selectively, cou lings pivoted to said latches, means for late ing saidcouplings in position to effect release of latches in lower orders as anincident to release of latches in higher orders, means for lathng SaidW9 couplings in position to permit operation of latches in higher orderswithout releasing latches -in lower orders, and a manually engageablepart wholly supported by each coupling whereby said couplings may bemoved from one position to another.

15. In a recording machine, a series of y type driving hammers, a seriesof latches for lease of the adjacent latch'or out of position to effectsuch release of the adjacent latch as desired, and a manually engageablepart supported by the other arm of said coupling for moving saidcoupling to said positions as desired.

16. In a recording machine, a series of type driving hammers, a seriesof latches for holding said hammers in retracted positions, a barmovable to release said latches from said hammers, a stationary supportupon which said bar is pivoted, a lever for oscillating said bar, a rockshaft, and a cam attached to said rock shaft arranged to operate saidlever and thereby said bar in a direction to release said latches fromsaid hammers during the initial movement of said rock shaft toward itsstarting point after said rockshaft has completed its full movement fromits starting point.

p 17. In a recording machine, a.=sfe,ries of type driving hammers, aseries of latches for holding said hammers in retracted positions, a barmovable to release said latches from said hammers, a stationary supportupon which said bar is pivoted, a lever for oscillating said bar, a rockshaft, a cam attached to said rock shaft arranged to operate said leverand thereby said bar in a direction to release said latches from saidhammers during the initial movement of said rock shaft toward itsstartin point after said rock shaft has complete vits full movement fromits starting point, and mechanism operated by said rock shaft duringmovement of said rock shaft to its starting point after said hammershave been released as aforesaid for operating said hammers to positionto be engaged by said latches.

' 18. In a recording machine, a series of type driving hammers, a seriesof latches for holding said hammers in retracted positions, a barmovable to release said latches from said hammers, a stationary supportupon which said bar is pivoted, a lever for oscillating said bar, a rockshaft, a cam attached to said rock shaft arranged to operate said leverand thereby said bar in a direction to release said latches from saidhammers during the initial movement of said rock shaft toward itsstarting point after said rock shaft has completed its full movementfrom its starting point, and springs for operating the hammers which arereleased as aforesaid.

19. In a recording machine, a series of type driving' hammers, latchesfor holding said hammers retracted, a rock shaft arranged to be turnedfrom and to a definite starting position, a device for releasing saidlatches from said hammers, a lever for operating said device, a camoperated by said rock shaft arranged to operate said lever shaft tooperate said bail after said hammershave been operated and duringmovement of the rock shaft. toward its starting position after thatportion of the initial movement of said rock shaft toward its startingposition during which the hammers are released as aforesaid.

- 20. In a recording machine, a series of type-carriers movable to andfrom recording positions, hammers for driving the type on saidtype-carriers to record, springs for operating said hammers, latchesmovable into and out of latched engagement with said hammers, a swingingbar, and means movable by the type-carrlers to position to hold saidlatches out of position to be engaged by said bar.

21. Ina recording machine, a series of type-carriers movable to and fromrecording positions, hammers for driving the type on sa1d typecarriersto record, springs for Op` eratlng said hammers, latches movable intoand out of latched engagement with said hammers, a swinging bar, meansmovable by the type-carriers to position to hold said latches out ofposition to be engaged by said bar, and means for moving into positlonto be engaged by said bar the latches which correspond to thetype-carriers which are operated.

22. In a recording machine, a rock shaft operable in forward and returnturning movements, a series of type-carriers movable to recordingposition during turning movement of said rock shaft from its startingposition, spring actuated hammers for driving the type on saidtype-carriers to print, latches for holding said hammers retracted, adevice for releasing latches of the hammers corresponding to thetype-carriers which move to recordlng position, mechanism for operatingsaid device to effect release of latches from hammers during the initialportion of the return turning movement of said rock shaft, and means onthe type-carriers which remain stationary for preventing operation oflatches holding the hammers corresponding to said stationarytype-carriers. I

23. Ina recording machine, a rock shaft, typecarriers movable torecording position during turning movement of said rock shaft from itsstarting point, hammers corresponding to said type-carriersrespectively, latches holding said hammers retracted, a swinging bar forreleasing latches, means carried by the type-carriers for holding saidlatches out of position to ybe engaged by said bar, means for moving thelatches to position to be engaged by said bar when the type-carriersoperate, a cam operable by the rock shaft during the initial movement ofsaid rock shaft toward its starting point after,` said rock shaft hascompleted its full movement from its starting point for operating saidbar to release the latches engaged by said bar, means for operating thehammers released as aforesaid, a bail for moving said hammers intolatched engagement with said latch members after operation of saidhammers, and a cam operated by said rock shaft to operate said bailafter said hammers have been operated as aforesaid and during movementof said rock shaft toward its starting point subsequent to that initialmovement of said rockshaft toward its starting point during which thehammers were released and operated.

HARRY LANDSIED'EL.

